Free Measurements MCQs with Answers

171. High energy physics deal with the:

• A. Study of electron behavior
• B. Study of electron charge
• C. Study of mechanics of energetic bodies
• D. Study of properties and behavior of elementary particles

Explanation: High energy physics, also known as particle physics, deals with the study of the fundamental particles that make up the universe and the interactions between them at incredibly high energies. It investigates the smallest constituents of matter and the fundamental forces governing their behavior. This field explores particle accelerators, collisions at high energies, and the creation and behavior of particles under extreme conditions to understand the fundamental nature of the universe at its most basic level.

172. Which one of the following Muslim scientists has made a significant contribution to the study of alchemy?

• A. Jabir Bin Hayyan
• B. Abu Abdullah Muhammad
• C. Ibn-al-Haitham
• D. Ibn-e-Sina

Explanation: Jabir ibn Hayyan, known in the West as Geber, is the Muslim scientist who made significant contributions to the study of alchemy. He was an influential figure in the field of alchemy during the Islamic Golden Age. Jabir ibn Hayyan is recognized for his extensive writings on alchemy, where he introduced experimental techniques and innovative procedures, contributing to the development of early chemistry and alchemical practices.

173. The book "Kitab-ul-Qanoon-ul-Masoodi" was written by:

• A. Ibn-e-Sina
• B. Al-Razi
• C. Abu-Rehan Al-Beruni
• D. Ibn-al-Haitham

Explanation: The book "Kitab-ul-Qanoon-ul-Masoodi" was written by the Persian scholar Al-Biruni, also known as Abu Rayhan al-Biruni. This work covers various topics related to astronomy, including discussions on celestial movements, planetary positions, and astronomical calculations. Al-Biruni was a prominent figure in the Islamic Golden Age and made significant contributions to astronomy, mathematics, and other scientific fields.

174. The first book on analytical "Hisab-ul-Jabrwal-Moqabl" was written by:

• A. Al-Khawarzami
• B. Al-Beruni
• C. Al-Razi
• D. Ibn-e-Sina

Explanation: The first book on algebra, "Hisab al-Jabr w'al-Muqabala" (The Compendious Book on Calculation by Completion and Balancing), was written by the Persian mathematician Muhammad ibn Musa al-Khwarizmi. This influential work laid down the foundational principles of algebra, introducing systematic methods for solving equations and dealing with unknown quantities, setting the stage for the development of algebra as a mathematical discipline.

175. "Kitab-ul-Manazir" the famous book on optics is written by:

• A. Ibn-e-Sina
• B. Al-Khawrzimi
• C. Jabir-bin-Hayyan
• D. Ibn-ul-Haitham

Explanation: The famous book on optics, "Kitab al-Manazir" (The Book of Optics), was written by the renowned Muslim scientist Ibn al-Haytham, also known as Alhazen. This influential work, completed around the 11th century, presented groundbreaking ideas on vision, light, and optics. It covered various aspects of optics, including the nature of light, the anatomy of the eye, reflection, refraction, and the formation of images. Ibn al-Haytham's work in optics had a profound impact on the development of the field and influenced later scientific advancements in optics and vision.

176. In International System of Units, the unit of length, mass, time, electric current, temperature, intensity of light and quantity of light and quantity are called:

• A. Derived
• B. Basic
• C. Fundamental
• D. Only b & c

Explanation: In the International System of Units (SI), base units are the fundamental units used to define other units. There are seven SI base units: Meter (m): Base unit for length. Kilogram (kg): Base unit for mass. Second (s): Base unit for time. Ampere (A): Base unit for electric current. Kelvin (K): Base unit for temperature. Mole (mol): Base unit for amount of substance. Candela (cd): Base unit for luminous intensity. Basic unit is another name for base unit.

177. The number of significant figures in 0.098000 is:

• A. 4
• B. 2
• C. 5
• D. 6

Explanation: As per the rule for significance: "Every zero which has a value has no significance and every zero which has no value has significance"In 0.098000The zero that is right after the decimal 0.0 has a value so its significance is zero. 9 and 8 are numbers so they have significanceThe last 3 zeros have no value so they will have significance. So, in 0.098000, 0.098000 these 5 numbers are significant. Hence, the number of significant figures is 5.

178. 1 degree is equal to _ radians.

• A. 0.0245
• B. 0.0561
• C. 3.1423
• D. 0.0174

Explanation: We know that, 2π radian = 360° or π radian = 180° Hence, 1° = π/180 radians = 0.0174 radians

179. The famous mathematician & the founder of algebra was:

• A. Al-Kindi
• B. Al-Khwarizmi
• C. Al-Beruni
• D. Naseruddin Tusi

Explanation: Muhammad ibn Musa al-Khwarizmi was a Persian mathematician who lived during the 9th century. He's renowned for his work in mathematics, particularly for his book "Kitab al-Jabr wal-Muqabala," which introduced systematic solutions for linear and quadratic equations. The word "algebra" itself is derived from the title of his book. His work laid the foundation for algebra as a discipline and significantly influenced the development of mathematics in the Islamic world and beyond.

180. 10-9 second are equivalent to:

• A. Deci second
• B. Nano second
• C. Milli second
• D. Micro second

Explanation: Nano is equal to 10-9. Hence, 10-9 sec = 1 nano sec